Skiving machine



March 26, 1929. F. M. FURBER 1,706,485

SKIVINCT MACHINE Filed April 16, 1926 4 Sheets-Sheet 1 w 5 .mn 0 m TW U1 www Nwm a (Ml/ l/Il n m L 3 m. ya i. b s

. 4 n|.| R i i RN 4 M Max-ch26, 1929. F. M. FURBER SKIVING MACHINE FiledApril 16, 1926 4 Sheets-Sheet 2 March 26, 1929.

F. M. FURBER 1,706,485

SKIVING MACHINE Filed April 16,,1926 4 Sheets-Sheet 5 March 1929- F. M.FURBER SKIVING MACHINE Filed April 16. 1926 4 Sheets-Sheet 4 l/E/V TUQ.FREDERICK M. Fl/RBER, Dicu SAMUEL R. CUTLER, ADM/i.

Patented Mar. 26, 1929.

lTE-D STATES PATENT oFFicE.

FREDERICK M. EURBER, nEoEAsED, LATE OF EEv EE MessAcii sE'rrs; BY SAMUELE. CUTLER, Anrrrmsrneroa, or REVER assAcnUsETrs, ASSIGNOR TO UNITED SHOEMACHINERY CORPORATION, OF PATERSON, NEW. JERSEY, A CORPORATION OF NEWJERSEY.

sKIvINe MACHINE.

Application filed April 16,

and longitudinal, of the bottom of the insole of the shoe, theillustrated machine herein disclosed being designed particularly toskive such a recess in a. filler of the type of that shown in thepatent.

The material of which these fillers are made is commonly paper feltwhich has been impregnated with an asphaltic substance and highlycompressed, such material by reason of its stiffness, its feltedcharacter and the presence of the thermoplastic impregnant presentingcertain difficulties in the skiving operation.

It is an object of this invention to provide an improved skiving machineadapted for recessing fillers of the type referred to above. p

According to one feature of the present invention, there isprovided aplate having a suitable matrix into which a blank is pressed'so as todistort it, a knife driven in a manner to produce a draw out and meansfor causing the blank to be traversed by the knife. The matrix plateprovides a firm support against which the blank may be pressed and thusdistorted properly; and the draw out executed by the knife facilitatesthe skiving operation. In the illus trated machine the knife is movedvery rapidly in'an orbital path in the planeof its cut, and the matrixplate is reoiprocated in a path to feed a blank carried by it to theknife, the blankbeing pressed into the matrix by a roll which engagesthe moving blank just in front of the edge of the knife.

In the course of the skiving operation, in which a certain amount ofheat is generated, the impregnant substance of the blank commonlybecomes somewhat plastic andsticky and tends to cause the cut producedby the knife to-be somewhat ragged. According 1926. Serial No. 102,491.

to another feature of the invention, means are provided for heating theknife. The hot knife apparently melts the impregnant substance which itencounters approximately to the consistency of aliquid so that the knifepasses easily through it. In the illustrated construction theheatingmeans is an electric heat unit held closely above the moving knife.

7 According to another feature of the invention a magazine is providedfor a stack of blanks from which the blanks are received one by one bythe matrix plate and delivered by the matrix plate to the knife, theplate being reciprocated from receiving to deliveringposition. I

After the blanks have been skived, it is desirable to remove themfromthe machine. According to another feature of the invention, thematrix plate carries each blank entirely past the skiving mechanisminwhich position it is removed from the plate. In the illustratedmachine a picker is actuated to lift each skived blank from the plate Iwhen the plate carriesthe blank beneath it, the blank being held raiseduntil the matrix plate, in its return to blank receiving position,operates mechanism which strips the skived blank from the picker andpermits it to fall into a suitable receptacle. v v

These and other features of the invention including certain details ofconstruction and combinations ofparts will-be described as embodied inan illustrative machine and pointed out in the appended claims.'Referring now to the accompanying drawmgs, l Figure l is a sideelevation of a machine in which the present invention is embodied;Figure 2 is a plan view of the machine;

Figure 3, is a rear elevation of the machine;

Flgure 4 1s a perspective showing more and the matrix plate;

Figure 5 is a detail principallyin section showing more particularly theconnection particularly the mounting of the feed slide Although theinvention is not limited to operating upon any particular kind of work,the illustrated machine, as has been stated, is designed particularly toskive a filler made of sheet material such as is indicated at 100 inFig. 6 in such manner as to produce a recess like that indicated at 200,such filler being made, for example, of felt impregnated with athermoplastic substance which is normally hard and stiff but becomessoft when heated sufficiently. In the operation of the machine, thefillers are stacked in a magazine and fed one by one from the bottom ofthe stack upon a matrixplate which then moves past a skiving mechanismincluding a presser roll and a knife, the matrix being so shaped that,as the matrix plate, with the filler upon it, passes beneath the presserroll to the knife, a selected portion of the forepart of the filler isheld up by the matrix plate in the path of the knife and cut off toproduce the recess 200.

Referring first more particularly to Figures 4 and 5, a main plate 9 hasfastened to it three auxiliary plates 15, 17 and 18. The

auxiliary plate 15 has a ll-shaped recess shaped to fit about the toeportion of a filler. The auxiliary plate 17 has a middle portion shapedto raise the desired portion of the filler into the path of cut of theknife. The auxiliary plate 18 is a thin one the surface of which is atthe same level as the extreme forward end of the auxiliary plate 17. Theplate 9 is thicker at its rear portion than at its front portion, thetwo portions being separated by a shoulder 20-which engages the rear endof a filler when the filler is in the matrix, the top surface of therear portion of the main plate 9 being substantially at the same levelas the top surface of the auxiliary plate 15. It will be noted that theauxiliary plate 15 has two narrow extensions 22 located one at each sideof the auxiliary plate 17, the purpose of which is toprevent the knifefrom digging into the filler farther than is desired during the skivingoperation. The whole structure, made up of the plates 9, 15, '17, and18, will be referred to hereinafter as the matrix plate since obviouslyit might be made of a single piece of metal. It is made in parts merelyto facilitate changing the shape of the matrix, it being noted that theauxiliary plates 15, 17 and 18 are fastened to the main plate 9 byscrews so to be readily removable and replaceable by plates of differentshapes.

This matrix plate is slid-able horizontally in guides 19, which arerigid with the frame of the machine, and has on its under side a rack 21(Fig. by means of which it is reciprocated. The rack is engaged by apinion 23 (Fig. to a shaft 25 (Figs. 2 and 3) which has also fast at oneend thereof a small gear 27 with which meshes a segmental rack 29. Thissegmental rack (Fig.

1) is pivoted to the frameof the machine at 31 and rocked to and fro bya link 33 pivoted at one end to the segmental rack and at the other to acrank arm 35 fast to a shaft 37, said shaft being driven, through aone-revolution clutch, by a belt 39 and pulley 40. With thisconstruction the matrix plate caused to make one complete reciprocationwhenever one revolution is imparted to the shaft 87. In Figure 2 a stackof fillers 100 shown in the magazine. Just as the matrix plate reachesits rearward position (the one shown in this figure) the lower mostfiller is pushed part way out of the magazine into the positionindicated in dotted lines in which position it rests in the matrix whichhas been described above and V is best shown in Figure 4. As the matrixplate moves forward (to the left as viewed in Figure 1) the filler iscarried beneath a presser roll 41 and skived by a knife 43 to producethe result shown in Figures 6 and 7. In order to support the matrixplate as rigidly as possible the time the filler is being pressed intothe matrix, a supporting roll 45' (Figure 3), loosely mounted on theshaft 25, engages the under side of the matrix plate.

Referring again to Figure 4, with occasional. reference to Figures 5 and6, the magazine in which the fillers are stacked and the mechanism forfeeding them one by one to the matrix plate will be described. Themagazine has three forward upright guides 47, 46 and 48 for engaging therounded toe portions of tne fillers. The upright 48 has been omittedfrom Figure 4 but is shown in Figure 2. At the rear end of each filleris a groove 300 and into these grooves extends a fourth guide. Thisguide. consists of two stationary, spaced plates 49 and located betweenthem a vibrator 51.. The purpose of this vibrator is to ensure that, asthe lowermost fillers of the stack are successively fed from themagazine, the stack shall settle. The vibrator 51 is fastened at itsupper end by a set screw 52 to a rock-shaft 53 having fast at one end anarm 55 to the lower end of which is pivoted a link 57, the end of thelink which is remote from the arm 55 being pivotally fastened to theknife 43 (Fig. 2). This knife, as will presently be explained, isoscillated in an orbital path, which lies in the plane of the out, andconsequently the link 57 is reciprocated, the shaft 53 rocked, andthevibrator 51 actuated. The stationary upri ht plates 49, which lie ateach side of the vibrator 51, are rigid with a block 59, said block alsohaving rigid with it a yoke 61 in which the rock-sl'iaft 53 has itsbearings. The block 59 is supported above a feed slide 61 upon the upperends of stationary rods which pass through slots formed in the feedslide.

The feed slide 61 has in its forwardedge a recess provided with aprojection 64 shaped to enter the groove 800 which is formed in the rearend of each filler. This feed slide is slidable upon the guides 19 overthe matrix plate and is urged forward at all times by tension springs 65which are connected at their rear ends to the feed slide 61 and at theirforward ends to screws 67 (Fig. 2) carried by the frame of the machine.The feed slide 61, which is shown in Figures 2 and l in its forwardposition just after having delivered a filler to the matrix, is moved tothis position by the springs 65, the limit of said movement at this timebeing determined by contact of a set screw 69 with the rear edge of theplate 9, said set screw being threaded through the downturned outer end,of a tail-piece 71 which is fastened at its inner end by screws 73 tothe feed slide 61. The feed slide is picked up by the reciprocatingplate 9 during the rearward movement of said plate, moved to the rearagainst the force of the springs 65, and thenreleased at the proper timeto permit the springs to move the feed slide forward so as to push thelowermost filler of the stack into the matrix. To this end (see Figures1 and 5) thereare fastened to the feed slide 61 two leaf springs 75 theforward free ends of which extend down through slots 77 in the feedslide. Carried by the plate 9 are two buttons, one of which is shown at79 in Figure 5 the lower, rounded ends of the buttons extending belowthe plate 9 so that, when the plate 9 is moved far enough to the rear,the lower ends of these buttons will contact with stationary inclines,one of which is shown at 81 in Figure 5. The heads of the buttons 79 arenormally located below the upper surface of the plate 9; a-ndabove saidheads are recesses in the'plate 9, one of said recesses being shown at83 in Figure 5. Assuming now that the feed slide61 is in its forwardposition, as shown in Figure 4, and has'just delivered a fillerto thematrix plate, that plate moves forward to carry the filler past theskiving mechanism, the feed slide at first moving with the matrix plateuntil further forward movement of the feed slide is arrested by contactof the rear ends of slots 85 in said slide with the stems of capscrews87 which serve, with the rods 63, as guides for the feed slide. Afterthe filler has been skived, it is removed from the machine by mechanismpresently to be described. At this time the free ends of the stiff leafsprings 7 5 are pressing down upon the upper surface of the plate 9. Assaid plate 9 moves back to its rearward position to receive anotherfiller,the free ends of the leaf springs 75 snap into the recesses 83(Fig. 5) and the feed slide 61 is thereby picked up by the rearwardlymoving plate 9 and moved rearwardly until the rounded lower ends of Thefeed slide 61 is thus connected temporarily with the plate 9 during aportion of the rearward movement of said plate and then, at the propertime, this connection is broken and the feed slide moves forward withrespect to the plate. It will be noted that the feed slide 61 not onlyacts to deliver a filler to the matrix but serves, during the skiving ofthat filler, to support the stack of blanks in the magazine; and thatthe stack of blanks; as it diminishes is supported alternately by thefeed slide and by the plate 9.

In order to facilitate the cutting operation, the knife is movedcontinuously in a manner to produce a draw out, the movement in theillustrated machine, as has been stated, being in an orbital path in theplane of the cut. To this end the knife 43, as best shown in Figs. 3 and8, has extensions at its opposite ends having bushings 88 to receivecrank pins 89 held at the enlarged upper ends of upright shafts 91. Thebushings 88 are rigidly fastened to the knife 43 by nuts 95 threaded onthe bushings; and the bushings are prevented from rising by'nuts 97threaded. upon the upper ends of the crank pins 89 and by washersbetween the nuts and the bushings. The crank pins 89 have T-shaped baseswhich are adjustable in T-shaped grooves in the heads of the shafts 91,screws 90 being provided for adjusting the crank pins so as to changetheir throw when desired, said screws serving also to hold the knifethus rnoves in an orbital path the plane of which is horizontal andproduces a series of draw cuts upon the work, the

upright shafts 91 being rotated at high speed.

In operating upon work such as has been described which comprisesabsorbent material impregnated with a thermoplastic substance,considerable difiiculty is encountered in making a clean smooth out. Ithas been found that the character of the cut is greatly improved byactuating the knife to produce a draw cut, and that it can be furtherimproved by heating the knife. Accordingly, an electric heating unit 107(Fig. 3) is mounted in a thin-walled hollow holder 109 which is fastenedto the frame of the machine and extends over and close to a portion ofthe knife, said unit being supplied with electricity from any suitablesource of electric current.

As the matrix plate carrying a filler is pre sented to and fed past theknife, the filler is pressed down into the matrix, as has been stated,by a presscr roll 41. Inasmuch as the filler at this time must bedistorted in such manner that only the desired portion of it lies in thepath of the knife, this roll should have provision for yieldingproperly. The illustrated roll 41 is a rubber one, that is, it comprisesan iron core and a. body portion of vulcanized rubber. This presser roll41 is oscillated from the segmental rack 29 in the following manner :Theroll 41 fastened to the middle of a shaft 111 at one end of which a gear113 (Fig. 1) is fastened, said gear meshing with idle gear 115. Thelast-named gear meshes with a second idle gear 117 which. in turn mesheswith the pinion 27, said pinion being oscillated, as has been explained,by the segmental rack. i Vith this construction the presser roll isrotated in a direction to aid the matrix plate in advancing the workwhen said plate is moving forward. The construction is such that theperipheral speed of the roll is equal to the rate of bodily movement ofthe reciprocating matrix plate.

As has been stated, the shaft 37 (Fig. 1), from which the matrix plateand the presser roll are driven, is rotated by a belt 39 tl'irough aonerevolution clutch. Inasmuch as any suitable one-revolution clutch maybe used and the details of construction of the one which is partiallyillustrated form no part of the present invention, no description of itwill be given other than to state that the clutch shown is of thewell-known Horton type and that, by manipulating the rod 119 by means ofa treadle (not shown) in such manner as first to push the rod up andthen to release it, the shaft 37 caused to make one revolution and cometo rest.

The matrix plate in its forward movement carries the tiller past theskiving mechanism into position to be engaged by a picker mechanism 1and 2) which lifts the tiller off from the matrix plate just as theplate reverses its direction of movement and then, when the plate hasbeen retracted, drops the filler between. the guides 19 to the floor orinto a suitable receptacle. A picker 121 is formed at the lower end of asmall red 123which has formed upon it two spaced collars 125, 127. Thecollar 125 is slidable in a socket having an open lower end and. locatedin the enlarged outer end of the horizontal arm 129 of a bell-cranklever pivoted at 131 to the frame of the machine and having a verticalarm 239 provided with a fork at its upper end to embrace an eccentric 33on a one revolution shaft 135 mounted in bearings in the frame of themachine. At the upper end of the enlarged outer end of the arm 129 is asmall bore through which the picker rod 123 passes freely. A nut 124,threaded on the rod, pro,- vides means for adjusting the rod vertically;and a coiled spring 126 rests at its lower end upon the collar 125 sothat the downward movement of the arm 129 is imparted to the picker rodthrough this spring. The shaft 135 comes to rest in the position shownin Fig. 1 with the picker 121 in raised position. lVhen one revolutionis imparted to the shaft, the picker is first forced down to cause it topenetrate a filler on the matrix plate and is then raised to lift thetiller from the plate. Mounted loosely on the shaft 135 is a pulley 137which is driven continuously bya belt (not shown) from any suitablesource of power; and, adapted to connect the pulley with the shaft, is aone-revolution clutch. Since any suitable one-revolution clutch may beused and the details of the one illustrated form no part of the presentinvention, said clutch will not be described other than to state thatthe illustrated clutch is of the well-known Horton type and that, whenthe arm 139 (Fig. 1) is pushed up and then allowed to drop back, theshaft 135 will make one revolution and come to rest. This arm 139 ispivoted at 141 to one end of an arm 143 the hub of which is fast to theouter end of a. short shaft 145 rotatably mounted in the frame of themachine; and fast to the inner end of this short shaft is a finger 147which extends up into the path of reciprocation of the matrix plate.When, therefore, the matrix plate approaches the end of its forwardmovement, it strikes this finger 147 and trips the clutch with theresult that the picker 121 penetrates the skived filler and lifts itfrom the matrix plate. The picker holds the filler suspended until, uponthe rearward movement of thematrix plate, an abutment'149 (Fig. 1)fasttothe under side of the plate strikes the upperend of a lever 151,which is pivoted to the frame of the machine at 153 and actuatesmechanism for stripping the filler from the picker point and permittingit to fall between the guides 19 to the floor or into a receptacleplaced to receive it.

This stripping mechanism comprises a stripper in the form of a sleeve155 having extending into it from its lower end to near its top acomparatively large bore to receive slidably the collar 127 on thepicker rod 123 and a coiled spring 157 The top of the member 155 has asmaller bore through which passes the rod 123, the spring 157 restingupon the collar 127 and serving to hold the stripper member normally inthe inoperative position shown. In order to push this stripper memberdown at the proper time and thus strip from the picker 121 a fillerwhich it is holding, an arm 159,

the hub of which is loosely mounted on'the shaft 135, is pulled down,said arm having at its outer end a yoke between the arms of 166 the hubof which is fast to a small rockshaft 169. This rock-shaft extendsthrough the machine from side to side thereof and has fast tothat endwhich is remote from the arm 166 a second arm. 167 the outer end ofwhich is connected by a long link 171 with the lower end of the lever151'. Consequently when the abutment 149 on the matrix plate strikes theupper end of the lever 151 and swingsit in a clockwise direction, thestripper 155 is moved down on the rod 123 to strip from the picker 121the skived filler which it isthen holding; and when the abutment 149moves away from the lever 151, the stripper returns to the positionshown under the influence of the spring 157 in the stripper. I i

The operation'of the machine is as follows :A stack of fillers .isplaced in the magazine and power is applied to-the pulleys 105, 40 and137. The pulleys 40 and 137 run idly' on their respective shafts 37 and135 but the pulley 105 rotates its shaft 103 and causes the'knife 43 tomove rapidly in an orbital path. Electric current is suppliedto theheating unit to heat the knife.

The vibrator 51 of the magazine, owing to its connection with the movingknife, is actuated to cause thefillers to settle down in the magazine.As soon as the knife has become properly hot, the clutch which isadapted to connect the pulley 40 with is thrown in to impart onerevolution to the shaft 37 and consequently one complete reciprocationto the matrix plate. At this moment the matrix plate is near the rearend of its path, and the free ends of the leaf springs 75 of the feedslide 61 are in the recesses 83 in the matrix plate. The matrix platefirst finishes its rearward movement, justbefore' the end of which thebuttons 79 ride up on the inclines 81 and release'the feed slide whichthereupon moves forward under the infiuenceof the springs 65 so as todeliver the lowe'rmostjfiller of thestack intothe matrix ofthe.matrixplat'e. The

matrix, plate moves forwardcarrying the filler past the skivingmechanism, which cuts the recess 200. Asthe forward end of the matrixplate strikes the finger 147, the onerevolution clutch controlled by itimparts one revolution to the shaft 135 with the result that the picker121 penetrates the skived filler and lifts itofffrom the matrix plate.The matrixplate on its rearward movement picks up the feed slide bymeansof the leaf springs 75, movesit part wayback, and comesto rest. In doingso, the abutment 14:9 tin-the matrix plate encountersthe lever the shaft7 means for moving the platewith upon it into operative relation to theknife in the magazine will'bedelivered one by one to the matrix plateand operated upon.

Although the invention has been set forth as embodied in a particularmachine designed to operate upon a particular kind of --work, it shouldbe understood that the invention is not limited in the scope ofitsapplication to any particular kind of work nor to the particularmachine which has been shown and described.

The filler disclosed herein forms no part of the invention and is shown,described and claimed in application Serial No. 252,868,

filed Sept. 6, 1918, in the name of this inventor, upon which UnitedStates Letters Patent No. 1,582,260-were granted April 27, 1926.

Having thus described the invention, what is claimed as new and desiredto be secured by Letters Patent of the United States is 1. A machineofthe class described having, in combination, a knife, means formoving theknife in a path to cause it to produce a draw out, a plate having; amatrixto receive a blank, means for Ipressingthe blank into the matrix,and means for causing relative movement of approach between the knifeand the matrix plate. I 2; A machine of the class described having, incombination, a knife, means for moving the knife in an orbital path inthe plane of its out to cause it to produce a draw cut,

matrix plate.

3.' A machine of'the class described'having, in combination, a knife,means formov ing the knife in a path to cause it toproduce a draw'cut',a plate having a matrix, means the knife and the A for pressing a blankinto the matrix, and i and pressing means. V

1. 'A machine of the class described havin combination, a knife, meansfor movingthe knife inan orbital path 'in the plane of its cutto causeit to produce a draw cut,'a plate having a matrix, meansfor pressing ablank into the matrix, and means for moving the plate with the blankupon it into operative relation to the knife and pressing means.

5. Aymachine of the. class described hav the blank ing, in combination,a knife, a magazine for a stack of blanks, a matrix plate, means fordelivering a blank from the stack to the matrix of the plate, and meansfor reciprocating the plate to cause it to feed the blank to the knifeand to return into position to receive in its matrix another blank fromthe stack. 7

6. A machine of the class described having, in combination, a knife,means for moving the knife in a path to produce a draw out, a matrixplate, and means for recipro eating the plate to cause it to feed ablank to the knife and to return into position to receive in its matrixanother blank.

7. A machine of the class described having, in combination, knife, meansfor moving said knife in a path to cause theknife to produce a draw out,a plate having a matrix to receive a blank, a roll having a yieldingperiphery located adjacent 'to the knife for pressing the blank into thematrix, and means for producing relative movement of approach betweenthe knife and roll and the matrix plate.

8. A machine of the class described having, in combination, a knife,means for moving saidknife in an orbital path to cause the knife toproduce a draw cut, a plate having a matrix to receive a blank, a rollhaving a yielding periphery located adjacent to the knife for pressingtheblank into the matrix, and means for producing relative movement ofapproach between the knife and roll and the matrix plate.

9. A machine of the class described having, in combination, a knife,means for moving said knife in a path to cause the knife to produce adraw out, a plate having a matrix to receive a blank, a rubber rolllocated adjacent to the knife for pressingthe blank into the matrix, andmeans for producing relative movement of approach between the knife androll and the matrix plate. a 1

, 10; A machine of the class described having, in combination, amagazine for a stack of blanks, a matrix plate, means for deliveringablank from the stack to the matrix of the plate, a roll having ayielding periphery for pressing the blank into the matrix, a knifelocated adjacent to the roll, and means for reciprocating the matrixplate to cause it to feed the blank to theroll and knife and to returninto position to receive another blank from the stack.

11. A machine of the class described having, in combination, a magazinefor a stack of blanks, a matrix plate, means for delivering a blank fromthe stack to the matrix of the plate, a rubber roll for pressing theblank into the matrix, a knife located adjacent tothe roll, and meansfor reciprocating thematrix plate to cause it to feed the blank to theroll and knife and toreturn into position to receive another blank fromthe stack.

12. A machine of the class described having, in combination, a knife,means for moving the knife in a path to produce a draw cut, means forheating the knife, a plate having a matrix to receive a blank, means forpressing the blank into the matrix, and means for producing relativemovement of approach between the knife and the matrix plate.

13. A machine of the class described having, in combination, a knife,means for moving the knife in an orbital path in the plane of its cut,means for heating the knife, a plate having a matrix to receive a blank,means for pressingthe blank into the matrix, and means for producingrelative movement of approach between the knife and the matrix plate.

14-. A machine of the class described having, in combination, a knife, amagazine for a stack of blanks, a plate located at a level below that ofthe lowermost blankof the stack, a feed slide located at the level ofthe lowermost blank, and means for reciprocating the plate and the feedslide to advance to the knife one at a time the successively lowermostblanks of the-stack in such manner that during the'operation of theknife upon a blank, the stack is supportedby the feed slide. v 7

V 15. A machine of the class described having, in combination, amagazine for a stack of blanks, skiving mechanism, a matrix platereciprocable in a path-below theflowermost blank of the stack, afeedslide reciprocable in the plane ofthe lowermost blank, means forcausing the feed slide to deliver the forward end of the lowermost blankinto the forward portion of the matrix, means for thereafter moving thefeed slide and the matrix plate in unison to advance the blank, andmeans for arresting the 'movement ofthe feed slide in positionto support the stack ofblanks in the magazine.

16. A machine of the class described havin combination, skiving;mechanism, a

plate, means for reciprocating the plate from blank-receiving positionto and pastthe skiving mechanism so that successiveblanks received bythe plate will be skived, means for lifting eachblank from the plateafter it has been skived, and means for'disengaging each skived' blankfrom the lifting means.

.17 A machine of the class described having, in combination, skivingmechanism, a plate, means for reciprocating the plate fromblank-receiving position to and past the skiving mechanism so thatsuccessive blanks receivedby the plate will be skived, means for liftingeach blank from the plate after receiving position for disengaging theblank from the lifting means.

18. A machine of the class described having, in combination, a magazinefor a stack of blanks, skiving mechanism, aplate for feeding the blanksone by one to and past the skiving mechanism, means for lifting theskived blank from the plate, and means for disengaging the blank fromthe lifting means.

19. A machine of the class described having, in combination, a magazinefor a stack of blanks, skiving mechanism, a plate for feeding the blanksone by one to and past the skiving mechanism, means for lifting theskived blank from the plate, andmeans operated by the plate during itsmovement toward the magazine for disengaging the blank from the liftingmeans.

20. A machine of the class described having, in combination, a knife,amagazine for a stack of blanks, a matrix plate located at a level belowthat of the lowermost blank of the stack, a feed slide located at thelevel of the lowermost blank, yielding means for moving the feed slideto deliver the lowermost blank to the matrix plate, means for moving theplate alternately toward the knife and toward the magazine, and meansfor causing the plate in its movement toward the magazine, first to movethe feed slide in opposition to the yielding means and then to releasethe feed slide.

21. A machine for skiving-a recess in a blank made of felted materialimpregnated with a thermoplastic substance having, in combination, aknife, means for operating the knife in a manner to cause'it to make adraw out, means for heating the knife, a feed member having a matrix,and means for pressing the blank into the matrix and for operating thefeed member to present the blank to the knife.

22. A machine of the class described having, in combination, a skivingknife, means including a member having a matrix therein fordistort'ing ablank and advancing it to the knife, means for moving the knife in apath to produce a draw cut, and means for heating the knife.

28. A machine of the class described havskived, a picker for liftingeach blank from the plate after the blank has been skived,

and means for strippingthe blank from the picker.

In testimony whereof I have signed my name to this specification.

SAMUEL R. CUTLER,

ing, in combination, skiving mechanism, a

Adonim'stmtor of the Estate 0/ Frederick A M. Furber, Deceased.

